# MTA

MTA may refer to:

## Organizations
### Transportation

* Metropolitan Transportation Authority, the public transport agency in the metropolitan area of New York City, United States
* Metropolitan Transit Authority (disambiguation), which may refer to several public transport/transit agencies
* Flint Mass Transportation Authority, Genesee County, Michigan
* Maine Turnpike Authority, Maine
* Manchester Transit Authority, New Hampshire
* Maryland Transit Administration
* Massachusetts Bay Transportation Authority, formerly Metropolitan Transit Authority
* Massachusetts Turnpike Authority
* Mendocino Transit Authority, California
* Mountain Ash railway station, Wales, National Rail station code
* Nashville Metropolitan Transit Authority, doing business as WeGo Public Transit, Tennessee
* San Francisco Municipal Transportation Agency, California
* Los Angeles County Metropolitan Transportation Authority
* Mersin-Tarsus-Adana Railway, a defunct Ottoman railway company
* Master Top Airlines, a defunct Brazilian airline company

### Education

* Hungarian Academy of Sciences (Magyar Tudományos Akadémia), Budapest, Hungary
* Marsha Stern Talmudical Academy, an Orthodox Jewish private high school in New York, New York, US
* Mount Allison University, a university in Sackville, New Brunswick, Canada
* Musical Theatre Academy, a drama college based in London, UK

### Other

* Metrolina Theatre Association, an organization which advocates performing arts in Charlotte, North Carolina, US
* MTA Records, More Than Alot Records, a record label
* Muslim Television Ahmadiyya International, a satellite television network
* Move to Amend, a U.S. political advocacy organization that seeks to amend the Constitution
* Manufacturing Technologies Association, a UK trade association
* Market Technicians Association, a non-profit organization of technical analysts
* General Directorate of Mineral Research and Exploration (Turkey), known as MTA
* Michigan Townships Association, an association of US township governments
* Mong Tai Army, an armed rebel group
* Metro Transit Assassins, a graffiti collective

## Sports

* Maccabi Tel Aviv, a sports club in Israel
** Maccabi Tel Aviv B.C., basketball team
** Maccabi Tel Aviv F.C., football (soccer) team
* Maximum time aloft, a sporting event with a boomerang

## Science and technology

* methylthioadenosine, a cofactor in biochemistry
* 4-Methylthioamphetamine, a designer drug of the substituted amphetamine class developed in the 1990s
* Material transfer agreement, governing the transfer of research materials between two organizations
* Mineral trioxide aggregate, dental material, used in endodontics and vital pulp therapy
* MTA (Swedish: Mobiltelefonisystem A), a former manual mobile network in Sweden
* Medial temporal lobe type of brain atrophy.
* Mousterian of Acheulean tradition $_{(fr)}$, a cultural and technological facies of the Mousterian

### Computing

* Cray MTA-2, a supercomputer based on the design of the never-built Tera MTA
* Message transfer agent or mail transfer agent, software that transfers e-mail between computers
* Multi-touch attribution is a form of attribution (marketing)
* Multimedia terminal adapter, a combination cable modem and telephone adapter
* Multi-Threaded Apartment, a concept used in Microsoft's Component Object Model programming architecture
* Microsoft Technology Associate, a certification scheme run by Microsoft

## Gaming

* Multi Theft Auto, a mod for computer games in the PC game series Grand Theft Auto

## Other uses

* "M.T.A." (song), or "Charlie on the M.T.A.", a 1959 hit song by The Kingston Trio
* Major trading area, a geographic region of the US surrounding a major city; See List of Basic Trading Areas
* Mall Taman Anggrek, a shopping center in West Jakarta, Indonesia
* Mid-term adjustment, a change in an insurance policy
* Military Technical Agreement, treaty ending the Kosovo War in June 1999
* Milk Tea Alliance, an online democracy and human rights movement
* Farmall M-TA, a widely-used model in the Farmall M tractor series
* UAC/HAL Il-214 Multirole Transport Aircraft, a planned medium-lift military transport